Pit

Template:Otherlang2 Death pits are used as obstacles in Portal 2 and destroy objects and players that drop into them, just like shredders and slime. They trigger a fade to black for players that fall into them.

Entities you need

trigger_hurt (using the block tool)

Making the deadly pit

Take your block tool and make a block in the place you want the player's death. After that press [Ctrl+T] and make it trigger_hurt. You can see many properties but we are only going to use the "damage", "damage cap" and the "damage type" properties.

Final things you need to do

Change the number of the "damage" property and put a high number (e.g 1000). Do the same with "damage cap" and then choose the "damage type" property and select "FALL".